Please disregard my last post regarding this, I just had a quick look and see that Dacal has completely re-worked the widget, I believe you can do the following to disable the heavy animations (you will still get all the weather info + the sun/moon animation for day & night but these are small animations and shouldn't cause a problem.

The method is as described in my previous post but for a different section of code, you just need to add the two symbols before and after the piece of code to disable it as per the attached screen shot.
Incase the screen shot is unclear for you, the first symbol is <!-- and the second one is //-->
Place these symbols before and after the section of code as per the screen shot below.

The file to edit in the "Wallpaper.html" file in the "Silex HD Springboard.theme" folder.

Please correct me if I am wrong Dacal.

You're right bro ! Lot of job here, so no update of Silex before the wee-end... fyi i begin to work on a configuration option to desactivate animations and have the choice of a static weather one in Config.js.

You're right bro ! Lot of job here, so no update of Silex before the wee-end... fyi i begin to work on a configuration option to desactivate animations and have the choice of a static weather one in Config.js.